(19)

(11)

EP 1 504 229 A1

(12)

(43) Date of publication: 09.02.2005 Bulletin 2005/06 (21) Application number: 03715153.7 (22) Date of filing: 16.04.2003

(51) International Patent Classification (IPC)7: F25J 3/02 (86) International application number: PCT/GB2003/001640 (87) International publication number: WO 2003/095914 (20.11.2003 Gazette 2003/47)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 13.05.2002 US 379687 P 24.07.2002 US 202568 (71) Applicant: BLACK & VEATH PRITCHARD, INC. Overland Park, KS 66211-1508 (US)	(72) Inventor: MCCARTNEY, Daniel, G. Overland Park, KS 66209 (US) (74) Representative: Colmer, Stephen Gary  Mathys & Squire100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)